CN211978205U

CN211978205U - Combined differential pressure transmitter

Info

Publication number: CN211978205U
Application number: CN202020439055.3U
Authority: CN
Inventors: 徐于华; 杨康
Original assignee: Jiangsu Zhongyi Instrument Group Co ltd
Current assignee: Jiangsu Zhongyi Instrument Group Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-11-20
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses a modular differential pressure transmitter relates to changer technical field, including changer casing, connector, diaphragm seat, base and damping foot, the bottom of changer casing and the top fixed connection of connector, the bottom of connector and the top swing joint of diaphragm seat, the bottom of diaphragm seat and the top swing joint of base, the bottom fixed mounting of base has three damping foot. This combination formula differential pressure transmitter, connecting axle and diaphragm seat through setting up are connected, upwards screw up the screw from the bottom of base again, make the base be connected with the diaphragm seat, accomplish the equipment to combination formula differential pressure transmitter, when using the completion to need carry or certain spare part wherein damages, can be again with the transmitter casing, diaphragm seat and base tear open, because connect between by threaded connection, the split is convenient, and the rubber damping cover that the outside of damping foot is wrapping up, in order to reach portable and maintenance, the effect of damping during the use.

Description

Combined differential pressure transmitter

Technical Field

The utility model relates to a changer technical field specifically is a modular differential pressure transmitter.

Background

Differential pressure transmitters are the most common type of weight transmitter used in industrial practice to prevent the medium in the pipe from directly entering the transmitter, and the pressure sensing diaphragm is connected to the transmitter by a fluid filled capillary tube. The device is used for measuring the liquid level, the flow and the pressure of liquid, gas or steam, and then converting the liquid, the flow and the pressure into 4-20 mA DC signals for output, and is widely applied to various industrial automatic control environments, and relates to various industries such as water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, war industry, petrochemical industry, oil wells, electric power, ships, machine tools, pipelines and the like.

However, the conventional differential pressure transmitter is usually a whole, is inconvenient to carry and overhaul, belongs to a precise instrument, and sometimes causes the differential pressure transmitter to vibrate when detecting, thereby causing inaccurate measurement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a modular differential pressure transmitter possesses portable, and the advantage of damping has solved portable not, the big problem of detection error.

The utility model discloses a solve above-mentioned technical problem, provide following technical scheme: the utility model provides a modular differential pressure transmitter, includes transmitter casing, connector, diaphragm seat, base and damping foot, the bottom of transmitter casing and the top fixed connection of connector, the bottom of connector and the top swing joint of diaphragm seat, the bottom of diaphragm seat and the top swing joint of base, the bottom fixed mounting of base has three damping foot.

Further, the outer wall of changer casing is provided with the display screen, the outer wall of display screen and the positive fixed connection of changer casing, the bottom of connector is provided with the connecting axle, the top of connecting axle and the bottom fixed connection of connector, the outer wall of connecting axle is provided with the screw thread, the connecting axle and diaphragm seat threaded connection that set up are passed through to the bottom of connector.

By adopting the technical scheme, the transmitter shell can be freely separated from the diaphragm seat.

Further, the outside of diaphragm seat is provided with pipeline interface, balanced valve, filter screen, two the same pipeline interfaces are installed to the outer wall symmetry of diaphragm seat, the inner wall of pipeline interface and the outer wall fixed connection of filter screen, the bottom symmetry that the pipeline interface was kept away from to the outer wall of diaphragm seat is installed two balanced valves.

Through adopting above-mentioned technical scheme, the use of filter screen can prevent that the impurity in the liquid from getting into and damaging the diaphragm.

Further, the inside of diaphragm seat includes the sensor, detects diaphragm, low-pressure chamber, hyperbaric chamber, isolation diaphragm and arc polar plate, the center department of diaphragm seat inner wall and the outer wall fixed connection of arc polar plate, the center department of arc polar plate inner wall and the outer wall fixed connection who detects the diaphragm, the top of detecting the diaphragm and the bottom fixed connection of sensor, the diaphragm seat is kept away from the left end of arc polar plate and is seted up the hyperbaric chamber, the diaphragm seat is kept away from the right-hand member of arc polar plate and is seted up the hyperbaric chamber, the equal fixed mounting of inner wall that hyperbaric chamber, hyperbaric chamber are close to the arc polar plate has isolation diaphragm, a plurality of screw hole has been seted up to the bottom of diaphragm seat.

Through adopting above-mentioned technical scheme, compact structure, and the design of bottom screw hole can realize the convenient to detach and the installation of base.

Furthermore, the inside of base is provided with a plurality of screw, the base is through the screw and the diaphragm seat threaded connection who sets up.

Through adopting above-mentioned technical scheme, the base can be dismantled, portable.

Furthermore, the outside of damping foot is provided with rubber damping cover, friction strip, the outer wall of damping foot and the inner wall fixed connection of rubber damping cover, the bottom fixed mounting of rubber damping cover has a plurality of friction strips.

By adopting the technical scheme, the vibration during use can be effectively reduced, and the measurement precision is improved.

Compared with the prior art, the combined differential pressure transmitter has the following beneficial effects:

1. the utility model discloses a connecting axle and the diaphragm seat that sets up are connected, upwards screw up the screw from the bottom of base again, make the base be connected with the diaphragm seat, accomplish to modular differential pressure transmitter's equipment, when using the completion need carry or wherein certain spare part damage, can detach changer casing, diaphragm seat and base again, owing to connect between by threaded connection, the split is convenient to reach portable and the effect of overhauing.

2. The utility model discloses a rubber damping cover that the outside of the damping foot that sets up is wrapping up, rubber have fabulous elasticity and have good buffering damping's effect, can make the changer reduce at the vibration of working day, and rubber damping cover bottom still is provided with the friction strip, can make the damping foot grab firm ground better, reduce vibration increase friction to reach the effect of damping.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structural connecting shaft of the present invention;

FIG. 3 is a sectional view of the structural vibration damping foot of the present invention;

fig. 4 is a sectional view of the structural pipe joint of the present invention.

In the figure: 1. a transmitter housing; 2. a linker; 3. a diaphragm seat; 4. a base; 5. a vibration damping foot; 6. a display screen; 7. a connecting shaft; 8. a sensor; 9. detecting the membrane; 10. a low pressure chamber; 11. a high pressure chamber; 12. a pipe interface; 13. an isolation diaphragm; 14. a balancing valve; 15. an arc-shaped polar plate; 16. a screw; 17. a threaded hole; 18. a rubber damping sleeve; 19. rubbing the strips; 20. and (5) filtering by using a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a modular differential pressure transmitter, includes transmitter casing 1, connector 2, diaphragm seat 3, base 4 and damping foot 5, the bottom of transmitter casing 1 and the top fixed connection of connector 2, the bottom of connector 2 and the top swing joint of diaphragm seat 3, the bottom of diaphragm seat 3 and the top swing joint of base 4, the bottom fixed mounting of base 4 has three damping foot 5, compact structure, the principle is simple, and the practicality is strong, is suitable for popularization on a large scale.

The outer wall of the transmitter shell 1 is provided with a display screen 6, the outer wall of the display screen 6 is fixedly connected with the front face of the transmitter shell 1, the bottom of the connector 2 is provided with a connecting shaft 7, the top of the connecting shaft 7 is fixedly connected with the bottom of the connector 2, the outer wall of the connecting shaft 7 is provided with threads, the bottom of the connector 2 is in threaded connection with the diaphragm seat 3 through the connecting shaft 7, the free separation of the transmitter shell 1 and the diaphragm seat 3 can be realized, the outside of the diaphragm seat 3 is provided with a pipeline interface 12, a balance valve 14 and a filter screen 20, the outer wall of the diaphragm seat 3 is symmetrically provided with two identical pipeline interfaces 12, the inner wall of the pipeline interface 12 is fixedly connected with the outer wall of the filter screen 20, the bottom of the outer wall of the diaphragm seat 3, which is far away from the pipeline interface 12, is symmetrically provided with the two balance valves 14, the detection diaphragm 9, the low-pressure chamber 10, the high-pressure chamber 11, the isolation diaphragm 13 and the arc-shaped polar plate 15, the center of the inner wall of the diaphragm seat 3 is fixedly connected with the outer wall of the arc-shaped polar plate 15, the center of the inner wall of the arc-shaped polar plate 15 is fixedly connected with the outer wall of the detection diaphragm 9, the top of the detection diaphragm 9 is fixedly connected with the bottom of the sensor 8, the high-pressure chamber 11 is arranged at the left end of the diaphragm seat 3 far away from the arc-shaped polar plate 15, the low-pressure chamber 10 is arranged at the right end of the diaphragm seat 3 far away from the arc-shaped polar plate 15, the isolation diaphragm 13 is fixedly arranged on the inner walls of the low-pressure chamber 10 and the high-pressure chamber 11 close to the arc-shaped polar plate 15, a plurality of threaded holes 17 are arranged at the bottom of the diaphragm seat 3, the structure is compact, the design, base 4 can be dismantled, portable is connected with the diaphragm seat through the connecting axle that sets up, upwards screws up the screw from the bottom of base again, makes the base be connected with the diaphragm seat, accomplishes the equipment to modular differential pressure transmitter, when using the completion need carry or certain spare part wherein damages, can detach changer casing, diaphragm seat and base again, owing to connect between by threaded connection, the split is convenient to reach portable and the effect of overhauing.

The outside of damping foot 5 is provided with rubber damping cover 18, rubbing strip 19, the outer wall of damping foot 5 and the inner wall fixed connection of rubber damping cover 18, the bottom fixed mounting of rubber damping cover 18 has a plurality of rubbing strips 19, can effectively reduce the vibration when using, improve measurement accuracy, the rubber damping cover of wrapping up in the outside of the damping foot through setting up, rubber has fabulous elasticity and has good buffering damping's effect, can make the changer reduce at the vibration of working day, and rubber damping cover bottom still is provided with the rubbing strip, can make the damping foot grab firm ground better, reduce vibration increase friction, in order to reach the effect of damping.

When in use, the connecting pipeline is connected with the pipeline interface 12, the connecting body 2 is connected with the diaphragm seat 3 through the connecting shaft 7, then the screw 16 is screwed up from the bottom of the base 4, so that the base 4 is connected with the diaphragm seat 3, the assembly of the combined differential pressure transmitter is completed, the rubber damping sleeve 18 is wrapped outside the damping foot 5, the rubber has excellent elasticity and good damping effect, the vibration of the transmitter during working can be reduced, the friction strip 19 is also arranged at the bottom of the rubber damping sleeve 18, the damping foot 5 can better hold the ground, the vibration and friction are reduced, so that the vibration damping effect is achieved, the differential pressure from the connecting pipeline at two sides directly acts on the isolating diaphragms 13 at two sides of the transmitter, the differential pressure is conducted to the sensor 8 through the sealing liquid in the isolating diaphragms 13, the sensor 8 converts the measured differential pressure signal into an electric signal corresponding to the signal and transmits the signal to the converter, and converted into a standard electric signal through amplification and the like, and then output to the display screen 6.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a modular differential pressure transmitter, includes transmitter casing (1), connector (2), diaphragm seat (3), base (4) and damping foot (5), its characterized in that: the bottom of changer casing (1) and the top fixed connection of connector (2), the bottom of connector (2) and the top swing joint of diaphragm seat (3), the bottom of diaphragm seat (3) and the top swing joint of base (4), the bottom fixed mounting of base (4) has three damping foot (5).

2. The modular differential pressure transmitter of claim 1, wherein: the outer wall of changer casing (1) is provided with display screen (6), the outer wall of display screen (6) and the positive fixed connection of changer casing (1), the bottom of connector (2) is provided with connecting axle (7), the top of connecting axle (7) and the bottom fixed connection of connector (2), the outer wall of connecting axle (7) is provided with the screw thread, the bottom of connector (2) is through connecting axle (7) and diaphragm seat (3) threaded connection who sets up.

3. The modular differential pressure transmitter of claim 1, wherein: the outside of diaphragm seat (3) is provided with pipeline interface (12), balanced valve (14), filter screen (20), two the same pipeline interfaces (12) are installed to the outer wall symmetry of diaphragm seat (3), the inner wall of pipeline interface (12) and the outer wall fixed connection of filter screen (20), two balanced valves (14) are installed to the bottom symmetry that pipeline interface (12) were kept away from to the outer wall of diaphragm seat (3).

4. The modular differential pressure transmitter of claim 1, wherein: the diaphragm seat (3) comprises a sensor (8), a detection diaphragm (9), a low-pressure chamber (10), a high-pressure chamber (11), an isolation diaphragm (13) and an arc-shaped polar plate (15) inside, the center of the inner wall of the diaphragm seat (3) is fixedly connected with the outer wall of the arc-shaped polar plate (15), the center of the inner wall of the arc-shaped polar plate (15) is fixedly connected with the outer wall of the detection diaphragm (9), the top of the detection diaphragm (9) is fixedly connected with the bottom of the sensor (8), the left end of the diaphragm seat (3) far away from the arc-shaped polar plate (15) is provided with a high-pressure chamber (11), the right end of the diaphragm seat (3) far away from the arc-shaped polar plate (15) is provided with a low-pressure chamber (10), the inner walls of the low-pressure chamber (10) and the high-pressure chamber (11) close to the arc-shaped polar plate (15) are fixedly provided with isolating diaphragms (13), the bottom of the diaphragm seat (3) is provided with a plurality of threaded holes (17).

5. The modular differential pressure transmitter of claim 1, wherein: the diaphragm seat is characterized in that a plurality of screws (16) are arranged inside the base (4), and the base (4) is in threaded connection with the diaphragm seat (3) through the arranged screws (16).

6. The modular differential pressure transmitter of claim 1, wherein: the rubber vibration damping sleeve is characterized in that a rubber vibration damping sleeve (18) and a friction strip (19) are arranged outside the vibration damping foot (5), the outer wall of the vibration damping foot (5) is fixedly connected with the inner wall of the rubber vibration damping sleeve (18), and a plurality of friction strips (19) are fixedly mounted at the bottom of the rubber vibration damping sleeve (18).